36444domain: NAppears in sequencesNumber of strictly 2-dimensional fixed polyominoes with n cells.at n=9A006762Row 3 in rectangular array A292929.at n=28A294066Length of period of continued fraction expansion of sqrt(3*2^n).at n=32A294226G.f.: Sum_{k>=0} (1 + k*x)^k * x^k.at n=10A360592